DOT4 has a higher heat rating. I guess it's needed for heavier braking
on a vanagon to get it to stop. Makes more heat.

John Rodgers
88 GL Driver

wogdog wrote:

>I'm ashamed to admit that after owning my Westy for 5 years that I have been using the wrong DOT in my hydraulic system. I changed out the clutch master and slave cylinder's today and as I was wiping up a spill on the reservoir I noticed "Use only DOT 4" on it. What is/are the differences between the two? Am I screwed? But then this is the first time I've had a problem with the system in 5 years.
>  TIA,
>  Paul Rogers
>  85 WWW
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